Low-voltage high-efficiency motor high thermal conductivity insulation structure and manufacturing method thereof

Abstract

The invention relates to a low-voltage high-efficiency motor with a high thermal conductivity insulation structure and a manufacturing method thereof. The insulation structure in the motor includes: a stator core with high thermal conductivity and a stator core with windings, the iron core is an insulation structure impregnated with high thermal conductivity composite insulating glue, The slot wedge adopts a high thermal conductivity slot wedge insulation structure, and the motor insulation paper adopts high thermal conductivity composite insulation paper. And according to its insulation structure, it provides the high heat conduction composite insulating glue used, and the manufacturing method of drawing slot wedge, high heat conduction composite insulating paper and high heat conduction winding stator core. The present invention can increase the thermal conductivity of the low-voltage motor to 0.3-0.4163W / (m.k) by using high-thermal-conduction insulating composite glue in the stator core of the low-voltage motor, as well as in the slot wedge and the motor insulating paper, and its insulation can reach F, H Class motor insulation requirements. The purpose of reducing the loss of the motor, improving the efficiency, reducing the calorific value, and reducing the temperature rise is realized. Therefore, the stability and reliability of the motor can be further improved, and the service life of the motor can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of motor equipment, and relates to a low-voltage high-efficiency motor with high thermal conductivity and insulation structure and a manufacturing method thereof. Background technique [0002] At present, domestic low-voltage motors are developing towards high efficiency, but the efficiency of motors is limited by many aspects, especially the constraints of electromagnetic and raw materials. Usually, the efficiency of the motor increases, and the temperature of the motor rises accordingly. Once the temperature of the motor rises, the phenomenon of burning and damage to the motor will occur under long-term operation, and there are problems of short service life and potential safety hazards. In the current low-voltage motors on the market, the thermal conductivity of the insulating adhesive used for impregnating the stator core in its structure is very low, generally 0.16W / (m.k), and the motor slot wedge does ...

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Problems solved by technology

[0002] At present, domestic low-voltage motors are developing towards high efficiency, but the efficiency of motors is limited by many aspects, especially the constraints of electromagnetic and raw materials.

Usually, the efficiency of the motor increases, and the temperature of the motor rises accordingly. Once the temperature of the motor rises, the phenomenon of burning and damage to the machine will occur under long-term operation, and there are problems of short service life and potential safety hazards.

In the current low-voltage motors on the market, the thermal conductivity of the insulating adhesive used for impregnating the stator core in its structure is very low, generally 0.16W / (m.k), and the motor slot wedge does not have high thermal conductivity. The insulating paper used for the motor is Ordinary insulating paper, therefore, the insulation structure of low-voltage motors cannot meet the requirements of high-efficiency motors, and it is difficult to achieve the purpose of improving motor efficiency and reducing temperature rise

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